Swagger and Apache curl's do not match

[itinneed2022]

I'm running flask restx behind an apache proxy. My team only gets one server for all our tools so it's kind of necessary.

I'm setting my namespace up like so:

namespace = Namespace('hosts', 'host endpoints', validate=True, authorizations=authorizations, path="/hosts")

The two endpoints are for a virtual machine name and a PUT that takes a json at '/'.

But in order to work w/ port 443 and https, I'm having to proxy my requests through apache and gunicorn. Apache config:

<VirtualHost *:443>
  ServerName webdev02.mycompany.com

  ## Vhost docroot
  DocumentRoot "/etc/httpd/htdocs"

  <Directory "/etc/httpd/htdocs">
    Options Indexes FollowSymLinks MultiViews
    AllowOverride All
    Require all granted
  </Directory>

  ## Logging
  ErrorLog "/var/log/httpd/httpd_error_log"
  ServerSignature Off
  CustomLog "/var/log/httpd/httpd_access_log" "mainserver"

  ## Server aliases
  ServerAlias webdev02.mycompany.com

  ## Custom fragment
  ## Custom fragment
  SetEnvIf X-Forwarded-For "^.*\..*\..*\..*" forwarded
  CustomLog "/var/log/httpd/httpd_access_log" combined env=!forwarded
  CustomLog "/var/log/httpd/httpd_access_log" proxy env=forwarded
<Location "literally 11 other applications">
  RequestHeader set X-Forwarded-Port 443
  ProxyPass http://127.0.0.1:80##/
</Location>
<Location /my_application>
  ProxyPass http://127.0.0.1:8082/
</Location>
<Location /swaggerui> # this has to be done to find the swaggerui page
  ProxyPass http://127.0.0.1:8082/swaggerui
</Location>
<Location /swagger.json> # because my_application represents the project running on port 8082, I have to redirect here to retrieve the swagger.json file
  ProxyPass http://webdev02.mycompany.com/my_application/swagger.json
</Location>
<Location /hosts/> # this is the start of my problems
  ProxyPass http://webdev02.mycompany.com/my_application/hosts/
</Location>
  SetEnv HTTPS On

</VirtualHost>

A curl requests works like so:

curl -X 'GET' \
  'https://webdev02.mycompany.com/my_application/hosts/myserver.mycompany.com' \
  -H 'accept: application/json'
{"vmname": "myserver.mycompany.com", "OS": "Red Hat Enterprise Linux 8", "PatchWindow": "1_Mon_AM_6"}

the problem: my swagger page does not recognize that it is behind Apache and Gunicorn. When I go to my doc page, select that same endpoint above and hit execute, it outputs the CURL like this:

curl -X 'GET' \
  'https://webdev02.mycompany.com/hosts/myserver.mycompany.com' \
  -H 'accept: application/json'

I've tried ProxyFix from werkzeug.middleware.proxy_fix and that has done nothing. How do I get a flask-restx project to recognize its behind a proxy?

I should mention I've seen a previous post on this but it hasn't resolved my issue.

[peter-doggart]

Can you debug a request on the flask app and grab the X-Forwarded-* headers to see what is being set during the forwarding?

[itinneed2022]

How would I do that?

[pydevmans]

Hello @itinneed2022, It can be if your Resource class are not configured with decorator api.expect as documented here.